2101100012012 has 24 divisors (see below), whose sum is σ = 3737418706560. Its totient is φ = 1033268088960.

The previous prime is 2101100011943. The next prime is 2101100012017. The reversal of 2101100012012 is 2102100011012.

It is a junction number, because it is equal to n+sod(n) for n = 2101100011984 and 2101100012002.

It is not an unprimeable number, because it can be changed into a prime (2101100012017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4134533 + ... + 4614819.

It is an arithmetic number, because the mean of its divisors is an integer number (155725779440).

Almost surely, 2^{2101100012012} is an apocalyptic number.

It is an amenable number.

2101100012012 is a deficient number, since it is larger than the sum of its proper divisors (1636318694548).

2101100012012 is a wasteful number, since it uses less digits than its factorization.

2101100012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498281 (or 498279 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2101100012012 its reverse (2102100011012), we get a palindrome (4203200023024).

The spelling of 2101100012012 in words is "two trillion, one hundred one billion, one hundred million, twelve thousand, twelve".